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Home >> Mercedes Benz >> 2021 >> G63 AMG >> Repair and Diagnosis >> Suspension >> Front Suspension >> Front Axle - 463 Chassis >> Testing & Repair >> Remove/Install Differential Lock Of Front Axle - AR33.40-P-0001XGA

Remove/Install Differential Lock Of Front Axle - AR33.40-P-0001XGA

Model 463 with engine 176, 177 

as of model year 2019 

Model 463 with engine 264 

as of model year 2019 

G13667854Courtesy of MERCEDES-BENZ USA
G13667855Courtesy of MERCEDES-BENZ USA
CAUTION Risk of injury  to skin and eyes due to handling of transmission oil. Health risk caused by swallowing transmission oil Wear protective gloves, protective clothing and safety glasses.
Do not pour transmission oil into beverage bottles.
AS00.40-Z-0001-01A
CAUTION Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.
AS00.00-Z-0017-01A
  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
  Notes on threaded connections fastened using a tightening angle-based tightening process   AH00.00-P-0020-01A
  Notes on self-locking nuts and bolts   AH00.00-N-0001-01A
  Notes on repair work on suspension components   AH00.00-P-0100-01A
REMOVINGINSTALLING Remove/install     
1 Remove lower center engine compartment lining.   AR61.20-P-1105XG
2 Support front axle differential (1).    
REFER TO SPECIAL TOOLS 000 588 10 62 00 Support plate   WS26.00-P-3309B
REFER TO SPECIAL TOOLS 000 588 11 62 00 Major assembly mount   WS01.00-P-0092B
3 Unscrew threaded connections (2). TORQUE SPECIFICATION Bolt, front axle differential/axle tube (bearing element) to frame *BA33.30-P-1002-03C 
4 Lower front axle differential (1) far enough until the bolts (3) are accessible.    
5 Release and disconnect electrical connector from front axle differential lock actuator (M46/7).    
6 Remove screw/bolts (3). TORQUE SPECIFICATION Screw, differential lock to axle tube *BA33.40-P-1006-01A 
7 Remove front axle differential lock actuator (M46/7) downwards. INSTALLATION IMPORTANT Replace seal.  
8 Install in the reverse order.    
9 Check front axle differential lock actuator (M46/7) for proper operation. IMPORTANT To do so, start engine, engage in neutral position of automatic transmission "Low Range" and operate all locks.
Then drive in light serpentine lines at walking pace until the indicator lamps of all three locks light up red (arrow) at the switches.
Then deactivate locks and "Low Range".
 
FRONT AXLE GEAR

Number Designation Model 463 as of model year 2019
BA33.30-P-1002-03C Bolt, front axle differential/axle tube (bearing element) to frame M10 Nm 60
M12 Stage 1 Nm 50
Stage 2 ∠° 90
DIFFERENTIAL LOCK SHIFT CYLINDER

Number Designation Model 463 as of model year 2019
BA33.40-P-1006-01A Screw, differential lock to axle tube Stage 1 Nm 10
Stage 2 Nm 20
Stage 3 ∠° 60
Tightening procedure   -